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From:   Sasha Levin <Alexander.Levin@microsoft.com>
To:     Daniel Wang <wonderfly@google.com>
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Subject: Re: 4.14 backport request for dbdda842fe96f: "printk: Add console
 owner and waiter logic to load balance console writes"
Thread-Topic: 4.14 backport request for dbdda842fe96f: "printk: Add console
 owner and waiter logic to load balance console writes"
Thread-Index: AQHUVpq/zmV6u4og3kyAk66PvwoYTaUKyzsAgAAUtACAAADNAA==
Date:   Mon, 1 Oct 2018 20:40:24 +0000
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On Mon, Oct 01, 2018 at 01:37:30PM -0700, Daniel Wang wrote:
>On Mon, Oct 1, 2018 at 12:23 PM Steven Rostedt <rostedt@goodmis.org> wrote=
:
>>
>> > Serial console logs leading up to the deadlock. As can be seen the sta=
ck trace
>> > was incomplete because the printing path hit a timeout.
>>
>> I'm fine with having this backported.
>
>Thanks. I can send the cherrypicks your way. Do you recommend that I
>include the three follow-up fixes though?
>
>c14376de3a1b printk: Wake klogd when passing console_lock owner
>fd5f7cde1b85 printk: Never set console_may_schedule in console_trylock()
>c162d5b4338d printk: Hide console waiter logic into helpers
>dbdda842fe96 printk: Add console owner and waiter logic to load
>balance console writes

Maybe it'll also make sense to make the reproducer into a test that can
go under tools/testing/ and we can backport that as well? It'll be
helpful to have a way to make sure things are sane.

--
Thanks,
Sasha=